The formation mechanism of PAN fiber was studied with the helps of SEM and AFM.
采用SEM和AFM对不同条件下制得的纤维和膜进行测试，揭示干湿纺纤维成形机理。
2
This pan is to protect the property from damage which may occur from normal condensate formation on the tank or leaks in the tank and pipe connections.
Gentle slope in the dust-pan like sag has geological condition for the formation of petroleum reservoirs, and is the favorable place for the accumulation of oil and gas.